/* GStreamer
* Copyright (C) <1999> Erik Walthinsen <omega@cse.ogi.edu>
* Copyright (C) <2005> Edgard Lima <edgard.lima@indt.org.br>
+ * Copyright (C) <2005> Nokia Corporation <kai.vehmanen@nokia.com>
*
* This library is free software; you can redistribute it and/or
* modify it under the terms of the GNU Library General Public
GST_BOILERPLATE (GstRtpG711Pay, gst_rtp_g711_pay, GstBaseRTPPayload,
GST_TYPE_BASE_RTP_PAYLOAD);
+/* The lower limit for number of octet to put in one packet
+ * (clock-rate=8000, octet-per-sample=1). The default 80 is equal
+ * to to 10msec (see RFC3551) */
+#define GST_RTP_G711_MIN_PTIME_OCTETS 80
+
static void
gst_rtp_g711_pay_base_init (gpointer klass)
{
guint avail;
GstBuffer *outbuf;
GstFlowReturn ret;
+ guint maxptime_octets = G_MAXUINT;
+ guint minptime_octets = GST_RTP_G711_MIN_PTIME_OCTETS;
+
+ if (GST_BASE_RTP_PAYLOAD (rtpg711pay)->max_ptime > 0) {
+ /* calculate octet count with:
+ maxptime-nsec * samples-per-sec / nsecs-per-sec * octets-per-sample */
+ maxptime_octets =
+ GST_BASE_RTP_PAYLOAD (rtpg711pay)->max_ptime *
+ GST_BASE_RTP_PAYLOAD (rtpg711pay)->clock_rate / GST_SECOND;
+ }
/* the data available in the adapter is either smaller
* than the MTU or bigger. In the case it is smaller, the complete
ret = GST_FLOW_OK;
- while (avail > 0) {
- guint towrite;
+ while (avail >= minptime_octets) {
guint8 *payload;
guint8 *data;
guint payload_len;
guint packet_len;
- /* this will be the total lenght of the packet */
- packet_len = gst_rtp_buffer_calc_packet_len (avail, 0, 0);
/* fill one MTU or all available bytes */
- towrite = MIN (packet_len, GST_BASE_RTP_PAYLOAD_MTU (rtpg711pay));
- /* this is the payload length */
- payload_len = gst_rtp_buffer_calc_payload_len (towrite, 0, 0);
+ payload_len =
+ MIN (MIN (GST_BASE_RTP_PAYLOAD_MTU (rtpg711pay), maxptime_octets),
+ avail);
+
+ /* this will be the total lenght of the packet */
+ packet_len = gst_rtp_buffer_calc_packet_len (payload_len, 0, 0);
+
/* create buffer to hold the payload */
outbuf = gst_rtp_buffer_new_allocate (payload_len, 0, 0);